Detachable fastener for cylindrical screens



W. L. LEACH., DETACHABLE FASTENER FOR CYLINDRICAL SCREENS.

APPLICATION FILED APR-10.1917- Patented July 20, 1920* M w a L I! M W ATTORNEYS WILLIAM LOGAN LEACI-I,

0F BROWNWOOD, TEXAS.

DETACHABLE FASTENER FOR CYLINDRICAL SCREENS.

Application filed April 10,

To all whom it may concern:

Be it known that I, WILLIAM L. LEACH, a citizen of the United States, and a resident ofBrownwood, in the county of Brown and State of Texas, have invented a certain new and useful Improvement in Detachable Fasteners for Cylindrical Screens, of which the following is a specification.

iviypresent invention relates generally to seeding devices, and more particularly to certain improvements therein upon the apparatus designed for the same use as described and claimed in my Patent 1,124,036, dated rlanuary 5, 1915, my object being to generally improve the efficiency and effectiveness of my patented arrangement by the provision of improved means to detachably connect and fasten the ends of a strip of reticulatc material in order to form the grading cylinder which, owing to these features may be readily renewed from time to time as becomes desirable or necessary.

Figure l is a partial vertical section taken longitudinally through one end of the grading cylinder;

Figs. 2 and 3 are respectively a perspective view of, and a sectional View through, a portion of the grading cylinder, and

Fig. l is a detail perspective View of one of the eccentric clamps.

Referring now to these figures, and particularly to Fig. l, the grading cylinder indicated generally at it) is, as usual, formed of a framework of which the inner longitudinal seed agitating ball'le strips 11 form a part, the cylinder having a reticulated wall consisting of successive sections 11 of dif fcrent mesh, gradi'lally of an increasing gage from one end to the other, the cyllnder being secured upon and rotatable with an axial shaft 12 and being mounted therewith in longitudinally inclined position, with its section of greatest gage at the lower end, the shaft 12 being journaled in bearings 13 carried by a framework, inclui'ling upper and lower side beams 14 and 15 and corner uprights 1G.

The several sections 11 of the grading Specification of Letters Patent.

Patented July 20, 1920. 1917. Serial No. 160,983.

cylinder, which may be formed of either perforated metal or screen wire, each consist of a strip of some such suitable material extended circumferentially of the cylinder and secured in detachable relation therearound by clamps consisting of hooks, bolts 11, apertured brackets 11 and eccentric-s 11, all as shown in Figs. 2, 3 and 4. Each reticulated strip has sheet metal relatively engaging end pieces 11 to which the brackets 11 and the bearing pieces 11 of the eccentric 11 are secured, so that with the hook bolts l1 adjusted through the brackets 11 and engaged with the eccentric, the latter upon turning movement serves to draw the sheet metal ends 11 firmly together in clamping relation. This movement of the eccentric ll to either operative or inoperative position may be effected by a suitable tool or implement extended into its socket l1 as seen in dotted lines in Fig. 2.

it is thus obvious that the several sections of the grading cylinder may thus be interchanged andv renewed, without difliculty, rendering the cylinder adaptable to various uses, that is various materials, by

inserting screen mesh for instance of diflerent gages.

I claim:

In an apparatus of the character described, a clamping connection for relatively movable parts including a bracket carried by one of said parts, a pair of laterally spaced bearing members carried by the other of said parts, a shaft having its ends journaled in the said bearing members and having an. eccentric portion and a tool receiving socket between the bearing members, and a bolt one end of which is loosely adjustably mounted through the bracket and the opposite end of which has a hook detachably engaging the eccentric portion of the said shaft as and for the purpose set forth.

\VILLIAM LOGAN LEACH. Witnesses:

IRA W. HALL, MARY ELLEN HALL. 

